Ventilator construction for windows



C- J. WELLER VENTILATOR CONSTRUCTION FOR WINDOWS 2 Sheets-Sheet 1 Filed Nov. 21, 1960 INVENTOR. (bar/es J. Weller A Hys.

United States Patent ice 3,107,599 VENTILATOR CONSTRUCTION FOR WINDOWS Charles J. Weller, 2503 S. Tekoa, Spokane, Wash. Filed Nov. 21, 1960, Ser. No. 70,845 4 (Jlaims. (Cl. 98-96) My present invention relates to a ventilator construction for windows. This application is a continuation in part of my application Serial No. 750,229, filed July 22, 1958 now abandoned. It is a purpose of my invention to provide a ventilator construction for windows which embodies a rectangular framework that has, as a part thereof, at least one louvered panel section wherein the louver-s are so arranged as to direct cold air inwardly and downwardly in the lower part of the panel and warm air outwardly and upwardly in the top part of the panel, together with a wedging closure sheet slidable on the framework into and out of position to seal off the louvered panel when ventilation is not desired.

The nature and advantages of my invention will appear more fully from the following description and the accompanying drawings illustrating a preferred form of the invention. It should be understood, however, that the drawings and description are illustrative only and are not intended to limit the invention except insofar as is limited by the claims.

In the drawings:

FIGURE 1 is a face view of a window embodying my ventilator construction;

FIGURE 2 is a sectional view taken on the line 22 of FIGURE 1;

FIGURE 3 is a sectional view taken on the line 3-3 of FIGURE -1;

FIGURE 4 is an enlarged fragmentary sectional view taken on the same line as FIGURE 2 but showing the closure sheet moved into position to seal the louvered section; and

FIGURE 5 is an enlarged fragmentary sectional view showing a modification.

Referring now to the drawings, my invention is shown in a window construction which has a top rail and a bottom rail 11. The stiles 12 and 13 are rectangular frames secured to the rails 10 and 11 by gluing or otherwise. The frame 12 has a louvered panel section 14 therein and the frame 13 has a louvered panel section therein. As shown each of the panel sections 14 and 15 is made of two pieces which overlap midway between the top and bottom of the section. A pane 16 of glass is used to close the opening within the rails 10 and 11 and the stiles 12 and 13.

The panel sections 14 and 15 are alike. Each one has the lips 17 in the upper piece pressed out toward the weather side of the window and extending upward. The lips 17 in the lower piece are pressed toward the room side of the window and extend downward. I have found this construction to be particularly advantageous in ventilating a room. When free air warms it expands and, volume for volume loses weight. This accounts for the air currents set up when the cooler, heavier air settles and forces the warmer, lighter air to rise and make room for it. With cooler air on one side of this louvered window, the warmer air in the room is pushed upward by the weight of the heavier air pushing its way into the louver part and settling through the slot at the bottom. This forces the warm air in the room to rise into the upturned louver part and travel upward through the discharge slot of the louver into the outside atmosphere thus creating air movements calculated to change the air of the room by this induced circulation.

I prefer to shape the lips 17 so that they are so close 3,107,599 Patented Oct. 22, 1963 to the edges of the openings from which they are formed that they exclude most insects.

When ventilation is not desired I provide a novel con struction for sealing ofif the openings in the stiles '12 and 13. The inner faces of the stiles are bevelled as indicated at 18, 19, 20 and 21. I provide two closure sheets 22 and 23 each of which is generally wedge shaped. The wedge shape can be molded in place if the sheets are cast, pressed, stamped, or screw set if wedge shaped portions are overlaid on flat sheets. These closure sheets preferably are made of a transparent plastic or of glass. The sheet 22 has top and bottom ribs 24 and 26 projecting beyond the wedge shaped body of the sheet. The sheet 23 has like top and bottom ribs 25 and 27. These ribs 24-27 are extended beyond the corners of the wedge shaped portions of the sheets 22 and 23 at 24a, 25a, 26a and 27a to provide length enough to contact at least three rollers generously so there will be no tilts or binding. These portions 24a-27a are provided with curved edges 28, 29, 30 and 31 for appearance. countersunk depression 22a and 23a on each sheet sufiices to enable the sheets to be moved toward each other by finger tip application.

In order to support the sheets 22 and 23 and to force them when moved to the position indicated in FIGURE 4, to wedge tightly against the bevelled surfaces 18, 19, 2t) and 21. I provide guide rollers 32 on the top rail 10 and similar guide rollers 33 on the bottom rail 11. Each roller is flanged as indicated at 32a and 33a to overlap the ribs 2427. Each roller is mounted by a stub shaft 34 having a flat head 35 that seats in a recess 36 of the roller. The stub shaft 34 has a reduced threaded extension 37 that extends into the corresponding rail 10 or 11 to a channel 38 provided in the rail where a nut 39 is located. The head 35 is slotted to receive an ordinary screw driver. Once the stub shafts 34 are fastened in place by the nuts 39 they need not be disturbed.

The channel 38 is filled between and over the nuts 39 by tenons 40 which are formed on the ends of the stiles and are appropriately notched to nest the nuts 39 so as to prevent their turning when the extensions 37 of the shafts 34 are being threaded into the nuts. As shown the tenons 40 serve to interlock the rails 10 and 11 with the stile [frames 12 and 13, and are glued in place. Only those rollers 32 and 33 at the ends of the stiles are held by embedded nuts 39. An appropriately designed Wood screw sufiices to hold the other'rollers. With this arrangement a window of any width can be supplied simply by supplying the proper length rails at top and bottom and supplying glass of the shape required to fill the opening between stiles and rails.

The rollers 32 and 33 are shown as molded plastic with their flanges 32a and 33a integral. Alternatively the rollers may be separate from the flanges and the flanges may be part of the head of the stub shaft. Such an alternative structur is shown in FIGURE 5 of the drawings.

In FIGURE 5 the stub shaft 41 has a large flange 42 which will guide the ribs 24-27 and a simple plastic washer 43 is rotatably mounted on the shaft 41.

I have shown the window with a louvered section on each side. However in certain installations a single louvered section may be adequate and more desirable than two. In such installations only one stile needs to be provided with the louvers.

It is believed that the nature and advantages of my invention will be apparent from the foregoing. description. 7

This window provides a convenient and simple construction to furnish ventilation when desired and sealing of the ventilators when no ventilation'is desired. Owing to the louver arrangement interchange of inside air and outside air is provided with a minimum of draftiness.

Having described my invention, I claim:

1. A ventilated window construction comprising a rectangular window pane, a framework in which said p ane is mounted, said framework comprising top and bottom rails and stiles connecting said rails, at least one of said stiles having therein a passageway therethrough which places the interior of the window frame in fluid communication with the exterior thereof in which passageway there is provided a louvered panel section including a lower group of louvers formed therethrough and directed inwardly and downwardly relative to said panel section and an upper group of louvers formed therethrou-gh and directed outwardly and upwardly relative to said panel section, the stile containing said panel section having its face bevelled transversely, a Wedge shaped closure sheet, and means on the rails supporting said sheet for movement substantially parallel. to the window pane between a position lying flat against the bevelled face of said last 20 is mounted, said framework comprising top and bottom rails and stiles connecting said rails, each of said stiles having therein a passageway therethrough which places the interior of the window frame in fluid communication with the exterior thereof, in which passageway there is provided a louvered panel section including a lower group of louvers formed therethrough and directed inwardly and downwardly relative to said panel section and an upper group of louvers formed therethrough and directed outwardly and upwardly relative to said panel section, the stile containing said panel section having its face bevelled transversely, a wedge shaped closure sheet, and means on the rails supporting said sheet for movement substantially parallel to the window pane between a position lying flat against the bevelled face of said last named stile and a position overlapping the pane.

References Cited in the file of this patent UNITED STATES PATENTS 

1. A VENTILATED WINDOW CONSTRUCTION COMPRISING A RECTANGULAR WINDOW PANE, A FRAMEWORK IN WHICH SAID PANE IS MOUNTED, SAID FRAMEWORK COMPRISING TOP AND BOTTOM RAILS AND STILES CONNECTING SAID RAILS, AT LEAST ONE OF SAID STILES HAVING THEREIN A PASSAGEWAY THERETHROUGH WHICH PLACES THE INTERIOR OF THE WINDOW FRAME IN FLUID COMMUNICATION WITH THE EXTERIOR THEREOF IN WHICH PASSAGEWAY THERE IS PROVIDED A LOUVERED PANEL SECTION INCLUDING A LOWER GROUP OF LOUVERS FORMED THERETHROUGH AND DIRECTED INWARDLY AND DOWNWARDLY RELATIVE TO SAID PANEL SECTION AND AN UPPER GROUP OF LOUVERS FORMED THERETHROUGH AND DIRECTED OUTWARDLY AND UPWARDLY RELATIVE TO SAID PANEL SECTION, THE STILE CONTAINING SAID PANEL SECTION HAVING ITS FACE BEVELLED TRANSVERSELY, A WEDGE SHAPED CLOSURE SHEET, AND MEANS ON THE RAILS SUPPORTING SAID SHEET FOR MOVEMENT SUBSTANTIALLY PARALLEL TO THE WINDOW PANE BETWEEN A POSITION LYING FLAT AGAINST THE BEVELLED FACE OF SAID LAST NAMED STILE AND A POSITION OVERLAPPING THE PANE. 